Driving and other belts



H. BRANIIVIER.

DRIVING AND OTHER BELT.

`APPL1CAT|0N F1LEn1AN.31,1921.

Patented June 28, 1921.

H. BRAMMER.

DRIVING AND OTHER BELT. APPLICATIQN FILED 1AN.31,1921.

PATENT oFFlcE.

HARRY BRAMMER, OF LEEDS, ENG-LAND'.

lDRIVING AND OTHER BELTS.

Specification of Letters Patent.

Patented Janes-s, 1921.

Application led January 31, 1921. Serial No. 441,382.

.driving and other belts which are formed of l separate pieces ofleather or like material,

and which, for the convenience of description, though they are notthreaded or linked together, are hereinafter called .links,- suitablysecured together. l

Hitherto it has been proposed to make four or more ply driving beltsarranged one upon the other in step formation of a series of flexiblelongitudinally tapering,-or parallel,short pieces or stripsof leather orother material, the wider ends forming the outer face of the belt andthe inner ends are beveled to form a continuous inner belt face, saidpieces or strips being secured together by rivets, each rivet securingthe whole of the plies together, orfeach rivet securing the end of apiece to a pair of adj acent pieces or strips, the free end of eachpiece or strip overlapping the head of the adjacent rivet. The object ofthis invention is to produce a strong and eiiicient driving or otherbelt of any desired length and width from a number of detachablepieeesor links of leather or other material laid fiat one upon the other sothat their ends overlap, and which do not require a special fasteningdevice other than a headed attaching pin or stud to secure the ends ofthe belts together.

According tothis invention the pieces of leather which form the link areformed or vout from small or waste pieces, or from strips or otherpieces. The pieces or links may be of any required length, width andthickness. One end of each llnk is out at or about a right angle to itsparallel sides, and hereinafter termed the `plain end offthe link. Theopposite end of the link is suitably shaped, such as, say, pointed, orsemi-circular, or the corners are rounded off. In each detachable linkare formed a number of holes arranged in one or more parallel rows atsuitable distances apartand from the ends of the link, for the insertionof studs as hereinafter described. ,When more than two rows of saidholes are employed then the holes in each alternate row are arranged tobe about midway betweernthe holes 1n the preceding and succeeding rowsforequalizing the strain of, or drag upon, the belt when in use. Thesaid holes in each ro-w are of a special shapeeor construction, that isto say, each hole consists of a larger and one or two smaller holesunited together by a neck or slit so as to give it, say, when a largeand a small hole and a neck are employed, a balloon shaped appearance,the larger portion of veach hole being of such a diameter that it willpermit the head or flange of the attaching stud to pass freely throughit, while the smaller sized portion is employed for receiving andhousing the shank or stem of the stud after it has passed through theneck or slit of the hole.

In the drawings hereunto annexed are shown methods of carrying thisinvention into practice, in which- Figure 1 is an elevation of a narrowdetachable link having two balloon shaped holes formed therein and anattaching stud;

'Fig 2 an end elevation ofthe same;

Fig. 3 is a front elevation having a detachable link with two rows ofholes and two attaching studs fixed to the link;

Fig. 4 is a front elevation of a detachable link having three rows ofholes formed therein and three attaching studs fixed thereto;

Fig. 5 is an elevation of a belt formed of anumber of detachable linksshown at Figs. 1 to 4 with the ends united together;

Fig. 6 is a part sectional elevation 'of the belt shown at Fig. 5; i

Fig. 7 is a front elevation of a detachable link with two holes formedtherein, one balloon shaped and one with a second small hole and neck;

' Fig. 8 is a side elevation of Fig. 7;

Fig. 9 is a front elevation with two rows of similar holes to thoseshown at Fig. 7

Fig. 10 is a front elevation of a detachable link with three rowsofholes similar to those shown at Fig. 7;

At Figs. 7 to 10 the ixed attaching studs are dispensed with andv loosestuds are employed in place thereof. A

Fig. 11 is an elevation of a belt constructed of detachable links formedas shown at Figs. 7 to 10;

Fig. 12 is a part sectional elevation ofthe belt shown at Fig. 11.

Like parts in all the views are marked with similar letters ofreference.

a is the detachable link which may be of any suitable length, Width andthickness, and it may be formed from either waste pieces, or from piecesor strips of leather or like mate rial. @ne end 5,--which is chamferedas shown at Figs. 2 and 8,-is cut at or about a right angle to itsparallel sides, and hereinafter termed the plain end of the link. Theopposite end c is suitably shaped, as, for eX ample, say, semi-circular,as shown at Figs. 1 and 7; or with the corners rounded ofi, as shown atFigs. 3 and 9; or in the pointed form, as shown at Figs. l and 10. vlneach detachable link are also formed a number of holes ci (and d1, Figs.7 to 10) in one or more parallel rows and at suitable distances apart.At Figs. 1 and 7 a single row is shown; at Figs. 3 and 9 ,a double rowis shown; and at Figs. 4c and 10 three rows are shown. rlhe said row orrows of holes is or are arranged at a suitable distance or distancesfrom each of the ends of the link. When more than two rows of holes areemployed, then the holes in each alternate row are arranged,- as atFigs. 4 and 10,-to be about midway between the holes in the precedingand sueceeding rows for equalizing the strain of, or drag upon, thebelt, when in use. The holes in each of the said rows are of a specialshape or construction. That is to say each hole consists of a largerportion d (and (Z1) and one or more smaller portions e and e1 unitedtogether by a neck or slit f (and f1 Figs. 7 tolO). At Figs. 1 to 4 theholes in each row are of the same shape, namely, they have a somewhatballoonshaped appearance, but at Figs. 7 to'10 the second row of holesare rather differently shaped, namely, the holes d1 instead of beingcircular are elongated and united by a second neck f1 to a secondcircular hole el. The larger portion d (and d1) of each hole is of sucha diameter that it will permit of the head. of a stud g passing freelythrough it while the smaller sized portion e, or e1, is employed forreceiving and housing the shank or stem h` of the studv g after it haspassed through the neck or :slit f or f1. Each row of. balloon shapedholes consists of twoor more of such holes arranged in a longitudinalline or lines at suitable distances apart. The end of each row of holesis, as previously named, at a suitable and varying distance apart fromeach of the ends of the link. That is to say the holes are` nearer thecurved or pointed end clzthan the plain end b. As a rule forcomparatively narrow belts two rows of holes will be formed in eachlink, but for wide and strong neeases klink as shown, the outer ends ofthe tubular portion being turned at a right angle to its main portion ineyelet fashion..

ln some cases, and in place of the tubular portion j, prongs similar tothose of a bifurcated rivet are employed and the outer ends of the saidprongs are arranged to turn at a right angle in a similar manner to theouter ends of the said tubular portion. At Figs. 7 to 12 where loose'rivets are employed the tubular or bifurcated portion j of the stud isdispensed with, and the flange z' is then employed in conjunction withthe head g for connecting the three links together, as shown at Figs.11, and 12: One, two, or three headed and flanged metal studs g forbelts constructed as shown at Figs. 1 to 6 is or are fixed to each linkat a suitable distance from the plain end b of the link, and also at asuitable distance from the lower holes Z in each row of holes. Whenthere are three (or more) rows of holes in a link, then the stud g inthe second of the three will be. about midway between the holes in thefirst and third rows of the link, as shown at Fig. 4. rlFhe studs g arearrangedpto project at or about a right angle from the outer side of thelink and they are secured in position by any suitable means on its innerside, as, for example, say, by the means previously described, or byriveting, and with or without the additional means of a washer on theinner side of the link. rlhe ennds b of the link are chamfered ortapered,-as shown in the several figures of the drawings,so asto permitportion of each link of the belt projects be yond the chamfered portionl0, of a lower link and that the projecting chamfered portion k is ofsuch a length as to permit of the said portions covering the clenched oreyeletted, or flanged portions of the attaching stud g. 'llhe headedportion of each stud g and the flanges z' are arranged to respectivelylie flat on the outer land 4inner surfaces of the respective links thatthey attach together.

To form a belt of the links as shown at Figs. 1 to 4, three links markedin Figs. 5 and 6 a, al, 0,2 are laid successively one upon the other,the larger portion of the second,- from the pointed or other shaped endof the links al is placed over the head of the fixed stud or studs gwhich projects or project from the lower link a.' The head or heads ofthe stud or studs is or are pressed through the larger portion d of thesaid hole or holes,

and the link a1 is drawn in the direction of arrow 1 for causing thestem k of each stud to pass through the neck orslit portion f of thehole so as to be inclosed or housed on the smaller hole e for securingthe link a1 in position. The chamfered end b of link a1 will thenproject beyond the chanifered end Z) of link a. .A third link a2 is thenplaced upon the second link a1. The'said link a2 is then placed in asimilar manner over link a1 and the stud or studs in link a is orarepassed through the upper hole or holes in link a2 v end holes in links aand al will be passed over the studs -g in the last two links thusenabling a belt to be formed, and its ends secured together, without theusual additional tastenings being provided.

ln the case of thev links, shown at Figs.- 7

to 10, where loose studs are employed a stud or studs g is or are thenplaced and passed through the lower hole or set of holes all, in, say, arst link a, that is', the holes nearest the chamfered end b of link a,and drawn through the neck or necks f1 into the hole of holes '61. Asecond stud or studs is or are then passed through the larger portion ofthe same lower hole or set of holes d1 and drawn through the neck ornecksf into the hole or holes e, that is, in an opposite direction tovthe iirst stud. The link a is then ready for receiving a second link a2which is placed under the first linkI a. The lower hole or set of holesd1 in the second link a2 is or are then placed in position for thesecond stud ,or set of studs of link a to be passed through the lowerhole of link a2. and drawn through the neck or necks 1 into hole orholes e1 of the second link. third` stud or set of studs is or arepassed through the`top' hole or holes l of the irst link a: and thelower hole or holes d1 of the second link a2, Figs. 7 and 9, or thelower middle hole or set of holes of Fig. 10 in link a2 anddrawn-throughthe neck or necks f into hole or holes e. The third link alis then placed under the link a2 and the third stud or set of studspassed through the lower hole or'set of holes d1 of link a1 and drawnthrough the neck or necks f1 into hole or holes el. The said operationsare continued until the desired length of beltin has been made. l

en the Vrequired length belting has been termed as herein described itsends are neck, and means passing united together to form an endlessbelt, as at l `1gs. 11 and 12, as follows 1 The length ofbelting isiirst bent until its ends are over each other when there will be twoholes in the last link and one hole in the last but one without studs.

The top hole or set of holes din the last link, and the lower hole d1 inthe same link,`

and the tophole in the last link but one is or are passed over the twobottom studs g inlink a in the opposite end of the belting; one end ofthe belting is then drawn in the direction of arrow 2, F ig. ll, forypassing the Shanks of the studs through necks f into holes e.

By the said means a strong, flexible, and comparativelynon-expansivedriving belt is produced, and provision is made in theevent of any link becoming worn or damaged for l it being readilyremoved and another link substituted.

at l claim iszl. A driving belt formed of a plurality of relatively datlinks arrangedinoverlapping relation, each link being chamfered at oneend and provided with holes including a relatively enlarged body portionadapted to reduced portion anlapted to receive only the shank of such afastener, and a plurality of headed fasteners each extending throughalinedl holes in overlapping links and securing said links together.

2. .A driving belt formed of a plurality of leather links arranged inoverlapping relation, each link being chamered at one end and having inits body a hole includinga balloon-shaped portion and a relativelypermit passage of a headed fastener and,` a

small Ahole connected with the balloon shaped portion by a narrow neck,and a pluralit of fasteners extending through alined forth. v

3. A driving belt formed of a plurality of relatively flat linksarranged in overlapping i v ll@ relation, each link being suitablychamfered at one end and having a plurality of rows of holes formedtherein, one of saidholes in each -row including a balloon shaped bodyconnected by a neck to a smaller hole, and headed fasteners passingthroughsaid holes and connecting the links.

4. A driving belt formed of a pluralityd of links arranged one upon theother, each link being suitably chamitered atone end and having aplurality of rows of holes-formed longitudinally of its body, one holeofeach row' including two small holes arranged at oles in overlappinglinks, as setv the extremities of and connected by necks to an enlargedcentral portionfanother hole in each row having a body of balloon shapeconnected at one end to a small hole by a and connecting the linksuthrough said holes l 4 neeaeee 5. Audriving belt formed of'a pluralityof loon shaped bodies each connected bya neck 10 l leather links,arrangedln overlapping reto a small circular hole and fastenerspasslation, each link being suitably chamfered ing through the saidholes and holding the at one end and provided with a plurality of linkstogether, as set forth.

5 holes arranged in longitudinal rows, one HARRY BRAMMER Y hole of eachrow including an'enlarged central portion and necks connecting the cen-Witnesses: tral portion with circular holes at each exv M. W. BOTTOMLEY,

tremity, other holes in the link having bal- Gr. Panik.

